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From: Malcolm Matalka <mmatalka@gmail.com>
To: Robert Roessler <robertr@rftp.com>
Cc: caml-list <caml-list@inria.fr>
Subject: Re: [Caml-list] Implementing JWT RS256 verification
Date: Tue, 19 Feb 2019 07:31:23 +0100
Message-ID: <CAKziXDWe2ct8XU2p_DMt4AojU=ifrYkncwSFOypoGPObHdt8xA@mail.gmail.com> (raw)
In-Reply-To: <0e233aa3-d549-1391-9594-3dfaf6eead6a@rftp.com>

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I am hoping something already exists in Ocaml rather than create new
bindings.

Den tis 19 feb. 2019 06:50Robert Roessler <robertr@rftp.com> skrev:

> Malcolm Matalka wrote:
> > Hello,
> >
> > I'm trying to implement verification of JWT's signed with RS256 and
> > having some trouble finding the crypto library I should use for this.
> > Nocrypt and CryptoKit are the obvious choices by searching opam, however
> > neither of them seem to quite have what I'm looking for.  RS256 is RSA
> > with SHA256 and something called PKCS1v1.5 for padding.  I see both of
> > these libraries have RSA options but it doesn't seem possible to specify
> > the hashing algorithm.  Nocrypto has a PKCS1v1.5 module in the RSA
> > module but no hash.  When I call [sig_decode] on my message I get back
> > a message text but it also doesn't seem to match what I'm expecting.
> >
> > My input is the message, the signed signature, and the public key, and
> > I'd like to know verify these match correctly.
> >
> > I really don't know much about crypto and am just trying to implement a
> > spec.  Anyone have a suggestion for what library I should use?  Am I
> > just missing something?
> >
> > Thanks,
> > /Malcolm
>
> Have you looked at Crypto++ (aka CryptoPP)?  It is a fairly complete
> library with "lots" of users.
>
> https://www.cryptopp.com/wiki/Main_Page
>
> Regards,
> --
> Robert Roessler
> robertr@rftp.com
> http://www.rftp.com
>

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  parent reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-19  5:37 Malcolm Matalka
     [not found] ` <0e233aa3-d549-1391-9594-3dfaf6eead6a@rftp.com>
2019-02-19  6:31   ` Malcolm Matalka [this message]
2019-02-19  9:41 ` Malcolm Matalka
2019-02-19  9:53   ` Malcolm Matalka

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